在数据库表employee中查找字段empid中以两个数字开头第三个字符是下画线”_"的所有记录,请问下列哪条语句是正确的( )
A.
select * from employee where empid like '[0-9][0-9]_%'
B.
select * from employee where empid like '[0-9][0-9]_[%]'
C.
select * from employee where empid like '[0-9]9[_]%'
D.
select * from employee where empid like '[0-9][0-9][_]'